Conveyer device



R. SHEDENHELM coNvEYER DEVICE Filed sem. 27. 1921 zsheetswsneet z v IN Vf/vro fel the wagon boX Patented Eet. l, 1923.

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ROBERT SHEDENHELM, OF GRINNELL, IOWA.

CONVEYER DEVICE.

Application filed September 27, 1921. Serial No. 503,644.

To @ZZ whom t may concern.'

Be it known that I, ROBERT SHEDENHELM, a citizen of the United States, and resident of Grinnell, inthe county or Poweshiek and State of Iowa, have invented a certain new and useful Conveyer Device, of which the following is a specification.

My improved conveyer is especially designed for use in connection with material digging, loading and conveying devices such for instance as that illustrated in my application Letters Patent on manure loader, and spreader, filed October 16th, 1917, 'Serial Number 196,952. In machines of this class when in use the lower end of the conveyer receives material such as earth, in wet or dry condition, manure, and the like from the cutting blade in the front as the machine is advanced. Then the material is carried by thev conveyer and discharged into into which the rear end of conveyor is extended. Heretofore considerable difiicultyV in maintaining such conveyor in operative condition has been experienced because it sometimes happened that the material being carried upwardly would drop oft' of the edges of the conveyer and enter between -the `upper and -lower portions of the conveyer and also the material that was piled within the wagon box would enter between the rear upper roller and the lower portion ofthe conveyer and thisV material would sometimesadhere to the rollers and sometimes to the inner surface of the conveyer belt and soon render the device inoperative. My object is to provide a conveyer for such purposes, of simple, durable, and inexpensive construction and so arranged and constructed that only in unusual or exceptional instances can any material enter between the upper and lower layers of the conveyer belt and if any material does thus enter it will be readily andv quickly removed, either from the .belt or from the rollers before any injury to the conveyor mechanism can take place.

A further object is to provide a conveyer of this class, in which the material being conveyed will scour the stationary side boards of the conveyer to prevent the accumulation of material thereon, and at the same time the binding or retarding eiect of such scouring will be reduced to a minimum.

My invention vconsists in the construction, arrangement and combination of the various parts of "the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which:

Figure 1 shows a vertical, central, sec` tional View of the conveyer embodying my invention.

Figure 2 shows a top or plan view of same.

Figure 3 shows a detailed sectional view on the line 8-3 of Figure 1, and

Figure 4 shows an enlarged detail side view of that portion of the conveyer belt through which the-material may be discharged from between the upper and lower layers of the belt.

Referring to the accompanying drawings I have used the reference numeral 10 to indicate generally the main frame of the conveyer, and 11 the forward portion of the wagon box into which the conveyer discharges. At the front of the frame is a material cutting' blade 12 and at the sides are the upright cutting blades 13. In use it is intended that the device `be advanced and that the cutting blade be pushed into the earth or other material to be loaded, so that the material will slide up over the cutting blade to the conveyer in the rear thereof.

Mounted within the frame 10, below the rear end of the cutting blade 12 is a roller 111-, and mounted on the frame 10, just above the forward end of the wagon box 11 is a large roller 15. This roller is made adjustable by the bolts 16 inserted through the slots 17. Midway between the rollers 14 and 15 are two smaller supporting rollers 18 and 19, rotatably mounted on the frame 10, the upper surface being in line with the upper, surface of the end rollers. y

At the sides of the said rollers are the stationary upright side boards 20. These eide boards are arranged on lines slightly divergent from each other, from the front toward the rear as is clearly shown `in Figure 2. The conveyer beltY is indicated generally by the numeral 21 and is preferably made of rubber coated canvas belting material and is provided on its outer surface with a series of transverse cleats 22 at regular intervals. The adjacent ends of the belt as clearly illustrated in Figures 2 and 4 stand apart.4 a considerable distance and are connected by means of the flexible chains 23 and resting on top of said chains is a flexible ,iap 24 secured to the belt only at its advance edge. This flap is so arranged that during'the irpward movement of the conveyer it will rest upon the chains 23 and cover the space between the ends of the conveyer belt and during the return movement it will hang downwardly, thus providing an opening in the belt through which any material between the upper and lower layers ot the belt may fall out.

In the event that any material should enter between the upper and lower layers of the belt and should adhere to the belt, I have provided for removing it by means oa sta tionary scraper 25, preferably made of iexible or yielding material and normally engaging the upper surface of the lower por'- tion of the conveyer belt to hold any material until such time as the chains 23 come directly below said scraper 25, whereupon the material will be discharged th'roughfthe space between the ends of the conveyer belt.

In addition to this I have provided' for removing from the rollers any' material that mightv adhere thereto by employing a sta-- tionary scraper blade 26 designed to normally stand close to the roller and scrape from the roller any material that accumulates thereon. These Scrapers 2G are prefer# ably made adjustable and the scraper 26 that is applied to the roller 15 is mounted up'on the adjustable support of said roller so that it moves with the roller.

Mounted upon a stationary part of the frame l() is a tension roller 27 supported yieldingly upon a spring 28. This tension roller is so positioned that substantially all of that part of the conveyer belt that is within the wagon box will be held against the roller 15 and thereby prevent the material that is piled up within the wagon box from' entering between the bottom portions of the rollerv 15 and the adjacent portions of the conveyer belt and to also apply a yielding tension to the belt itself.

To prevent the entrance of: material between the upper and lower portions of the conveyer belt during the upward travel of the material I have provided the inclined guards 29 xed to a part ol the frame 10, and having their inner ends extended under the upper portion of the conveyer belt and inclined downwardly and outwardly to a y point beyond the outer edge of the'lower portion of the conveyer belt as is shown clearly in Figure 3.

In practical use and assuming that the machine is being used to load, say for instance wet earth, the material is carried by the blade 12 to the receiving end of the conveyer belt in a continuous body with substantially the same' width as the. belt at the point where it is received uponl the belt. Under such conditions the material will lightly rub Vagainst the sides 20 and: prevent'theaccumulation of material there'-l on'. Ais1 the* maternal. advances upthe con;

the edges or' the conveyer belt and the ad- Y jacent portions of the stationary side boards. This materiahhowever, is all conducted by the guards 20 at a. point of discharge that will prevent it fromv entering between the upper and lower parts of the conveyer belt'. The material is then delivered into the wagon box'and ity obviously will accumulate therein and this accumula-V tion oit-material in the` w-agonbox would tend, under some circumstances to' enter between the bottom portion of theroll'erV 15' and the adjacent portion of the conveyer' belt. To avoid this contingency I have provided aA belt tightn'er'ro'ller' 27', which is so positioned that itwill hold the belt tightly to the roller 15 atl the point wherefsuch acl cumulated material as is in the wagon'f box mighttend' to enter. Y

Furthermore, in the event that any material does enter between the upper' and lower portions of the conveyer belt, this material will all be gathered together by the flexible scraper device forV the conveyer belt and when the chains23l come to position directly under' this flexible scraper all of such accumulated material will be discharged. Material is prevented from adhering to the rollers themselves by means of the roller Scrapers and all of the material thus scraped from thev rollers will accumulate and drop by gravity tothe upper surface of the low-portion of thel conveyer so that it may drop out throughv thevchainsV 23; Y

I claim as my invention: Y

l. In a device ofthe class described, the combination of a supporting frame', rollers therein, a conveyer belt passed aroundI said rollers, stationary sideboar'ds supported by the frame, their sidesv beingslightlyV spaced apart from the sides'ofthe conveyer at-the receiving end thereof and slightly divergent from each other toward"` the delivery end of the conveyer, for the purposes stated;

2. In a device of the Vclass described', the combination of a sup-porting ramerollers` therein, a conveyer belt passed around said rollers, stationary side boards; supported bythe frame, their' sides being .slightly spaced apart from the' sides of the conveyerl at. the receiving end thereoi` and slightly' divergenti" from' eaclr othertoward' the delivery end of the conveyer and guards fixed `to the frame between the upper and lower portions of the conveyer belt their upper edges being spaced inwardly from the side edges of the conveyer belt and their body portions being inclined down wardly and outwardly, for the purposes stated.

3. In a conveyer the combination, of a frame, a wagon box, a cutting blade at the forward end of the frame, a conveyer roller beneath the rear end of the cutting blade, a conveyer roller above the forward end of the wagon box, a flexible conveyer having cleats thereon passed around said rollers, stationary side boards at the sides of the upper portion of the conveyer belt slightly `spaced apart from the edges of the conveyer belt at the receiving end7 and slightly divergent from each other toward the delivery end, inclined guards having their upper ends spaced inwardly from the side edges of the conveyer and extended downwardly and outwardly to points beyond the sides of the lower portions of the eonveyer, and a yielding tension roller applied to the under portion of the eonveyer belt in positions to hold the oonveyer belt against that portion of the conveyer roller that is within the wagon box for the purposes stated.

Des Moines7 Iowa, May 23rd, 1921.

ROBERT SHEDENHELM. 

